Pulley attachment



` PULLEY ATTACHMENT Filed Dec. 12, 1925 ATTORNEYS Patented Sept. 4,1928.

UNITED, Asmili-as CHARLES Maenner, or sin. ANTrroivY, inane PULLEYA'rfrneniilmlvr.y

Application nled December Myinvcntonrelates generally to improvements inpulley attachments, more particu larly to a sleeve covering for a pulleyor for a series of axially aligned adjacent Pulleys and .it consists inthe combinations, constructions and arrangements hereiny described andclaimed.

All Object Qf the invention iS the Provision of an attachment for thepulleyeen the Cylinder carrying shaft of a grain thrasher or Separator,whereby vthe effleetive diameter 0f the pulleys on the cylinder shaftwill be increased and the thrasher or Aseparator' Will be adapted foruse as a pea and bean huller.

A further object of the invention is the provision of a. pulley`attaclnnent of the character described which can be quickly and easilysecured on a pulleyor a plurality of axially aligned vildlacent pulleys,and as quickly and easily removed from the `pulley or pulleys whendesired.

A further object ofthe invention is the provision in en attachment ofthe elieraeter described 0f a sleeve .Covering for pulleys, comprising aseries of segmental sections and a simple and reliable means connectingthe sections and releasably holding the sections in place on theperiphery of. a pulley.

Otherobjects and advantages of the inventien will be apparent fromthefellewng description, considered in conjunction with the aeeempanyngdrawings, in which Figure 1 is a. yieu7 mainly in vertical sectien endpartly inside elevetiemehewng `sleeve coverings formed according to the4invention and applied to the pulleys on the Y end portions of thethrasherjcylinder supporting shaft,

Figure 2 ie .e relatively enlarged free mentary View, showing thepulleys and the sleeve covering thereon at one ,lend of thesheftexhibited in Figure l, the Pulleys and their Sleeve Covering beingShown in verdeel Section, and Y Figure 3 is a sectional view vsubstantially along the line 3- 3 of Figure 2.

, The Cylinder ef .e i grain Separator e1' thrasher of any one of a:plurality of vvell `lederen, eenetruetiene, .commonly .in use, iS

driven too rapidly to permitthe use thereof in the operation ofhullingpeas orbeans since cracking of the peas or beans would resultfrom the attempted use of `a grain `Separator er threeher heaving eevlinder re- .ming ,et normal speed ae .e heller fer pees and beans Itisde sireblen .order that e l12, 1925. serial Nq. 75,146.

grain tluasher er Separator may .be adapted for use as a pea oi'beanhuller that the speed of rotation of the cylinder be reducedconsiderably and that the remaining rotating parts of the thrasher orseparator which cooperate vvith the cylinder, such as the fan or blower,the feeder and the separator drive, should Vbe driven at speeds whichare approniuldtely normal. To this end, the invention `provides an`attaclnnent for the pulleys of the opposite end portions of thecylinder supporting shaft, whereby the effective diameter of all the pulleys `on the shaft will be increased and the cylinder then will rotateat a greatly reduced speed when 'a torque is transmitted to the shaftthrough one of the enlarged pulley units. `At, `the same time, beltconnections from l the enlarged pulley'assemblies Will result vin Ithedriving of associated speeds. o

In Figure 17 .the numeral l deesnetee ,e shaft on which a thrasher,cylinder C is mounted to rotate with vthe shaft.` One en d portion ofthe shaft l carries the pulleys `30, l0 and yvhile the other end portionlof the Shaft fCarries the pulleys .3, deed 5- ,It 0f course will heunderstood that in actual practice, the cylinder'` C will be housedwithin the body or casing or a thrasher or separator and that theA endportions of the shaft l with the pulleys thereon will be dispqsed atopposite sides of the body of the thraslier or separator. In theordinary use of such thrasher 'or separator, the pulley 30 maybe used totransmit motion through a suitable belt connection, not Shown, toa fanand the remaining pulparts at approximately normal l leys 40, 50, d and5 may be connected in a .like manner to other parts of the thrasher orseparator which are to be driven, the pulley mitted from a sourceofdriving poivervfor the purpose of rotating the shaft l andthevcylinder thereon.` The number of pulleys on the end portions of thecylinder supporting shaft and the size of such pulleys may he inventiontherefore provides asleevr-x 3 being the one to which a. torque istransloo eevering'geuerally ndeeted at 2 for thepul-` leys, 30,' 40 and50 on one endportion of the shaft 1 and a. sleeve covering indicatedgenerally at 6 for the pulleys, 4 and 5, which are on the opposite endportionof the shaft 1. The sleeve coverings 2 and 6 are alike inessential respects. 'The sleeve covering 6 shown in detail in Figures 2and 3 and the following description of the sleeve covering 6 may beconsidered as applying also to the construction of the sleeve covering2. Such structural differences between 'the sleeve coverings 2 and 6 asappear in Figure' 1 of the drawings will be hereinafter referred to.

The sleeve covering 6 is made up of a series of arcuate segmentalsections 7 extending completely around the pulleys 3, l and 5, theindividual sections`7 extending transversely across the alignedpulleys', 4 and 5 so that the end faces vof the` sections 7 of thesleeve covering respectively are substantially iiush Awith vthe remoteedges of the rim portions of the pulleys 3 and 5.

The sections 7 preferably are formed of wood. These sections haveopenings 8 formed therethrough between radial faces thereoffand theopenings 8 of the respective Sections 7 will register and form asubstantially circular opening for the reception of a iexible clampingband or wire 9 when the sections 7 are arranged in a circular seriesabout the peripheries of the pulleys 3, i and 5, as best -seen in Figure3. By referring to Figures 1 and 2, rit will be obvious that thesections 7 are cut-away at their outer sides transversely thereof asindicated at 10 and 11, the recess that is defined by the cut-awayportion 10, being located intermediate the ends of the sections andbeing of greater depth than the cut-away portion indicated at 11. Also,it will be observed that each section 7 of the sleeve covering has acut-away portion at its inner side as indicated at 12,whereby theinnerdiameter of the portion ofthe sleeve ywhich has the greater outerdiameter also will be greater than the `inner diameter of the remainderof the sleeve 6. Moreover, the outer diameter of the middle portionofthe sleeve 6 will be less than the outer diameters of the respectiveend portions of the sleeve 6 and the outer diameter of the portion ofthe sleeve 6 that is composed of the end portions of the ysections 7that are cut-away at 11 will be less than the outer diameter ofthe otherend portion ofthe sleeve, said last named end portion of the'sleeve 6being-indicated' at 13. The hereinbefore mentioned openings 8 are formedinithe end portions of the sections 7 which have the cut-away portions11. The other end portions of the sections 7 also may have `openingsindicated at 14. and 15 respec- `tivelyformed therethrough betweenradial faces thereof, respective openings 15 registeringto form asubstantially circularopening for the reception of a- 'exible clampingwire 16and ythe openings `14 registering to form a substantiallycircular opening for the reception of a clamping wire 17 when thesections 7 are arranged in a series about the peripheries of the pulleysleeves 4 and 5. Two adjacent sections 7 have the adjacent ends of theopenings 8, 11i.` and 15, respectively enlarved, as indicated at 18, 19and 20, respectivcily. A sleeve coupling ornut 21 is partially receivedin the notched end portions 18 of the openings 8 in adjacent sections 7and is in threaded engagement with the ends of the clamping member 9',whereby the ends of the clamping member 9 are adjustably connected. Asimilar sleeve coupling or nut 22 adjustably connects the ends of theclamping member 1S).v The ends of the sleeve coupling 22 are received inthe enlarged end portions 19 ofadj acent openings 14 of said twoadjacent sections 7. A third sleeve nut 23 adj ustably connects the endsof the clamping member 15 andthe ends `of the sleeve coupling 23 extendinto the enlarged portions 20 of the openings 15 in said two adjacentfsections 7. f 1- The sleeve covering 2 will be formed of arcuatesegmental sections 7 which are connectedby clamping wires 16', 17 and 9.The clamping members 16', 17 and 9 have the ends thereof adjustablyconnected by coupling nuts, not shown, similar to those which connectthe ends of the clamping members 16, 17 and 9. The sections 7 may diferfrom the sections 7 in that the sleeve covering 2 .has the outerperiphery thereof formed to have the same diameter `from oneend'of thesleeve covering 2yto its opposite end, and the sleeve covering 2 alsomay be uniform in inner diameter throughout its length, instead o'fhaving stepped portions. v l

From the foregoing description ofthe various parts ofthe device, theoeration thereof may be readily understood. ien the shaft 1 is driven bymotion transmitted thereto as a result of the movement of a belt notshown, which may be employed to connect thelarver end portion 13 of theSleeve covering 6 with a rotary drivingl member, the cylinder C will beturned at a speed which is considerably less than that at which saidcylinder would be turned during the use thereof as a part of a grainthrasher or separator. However, the rotary parts which are driven byreasonof connections between such rotary parts and the remainingportions of the ysleeve coverving 6 and with the sleeve covering 2 willbe driven at speeds which are approximately normal. 'A thrasher orseparator which includes the cylinder C and the shaft 1` and whichhassleeve Vcoverings embodying the invention applied to the pulley orpulleys on opposite end portions of the shaft 1 thus will be adapted foruse as a pea or bean huller. It is obvious that the sleeve coveringsembodying the invention may be formed asfrequired toL adapt them to fiton pulleys of different sizes and each on a single pulley or on a givennumber of pulleys Wit-hout departing from clamp said sections to theperiphery of said the spirit and scope of the invention. pulley, saidsections being formed so that the Ielaini:M sleeve covering which iscomprised by the l0 A sleeve Covering for pulleys comprisin a sectionswill consist of a plurality of portions 5 plurality of segmentalsections, adjusta le having different outer diameters.

means connecting said sections in series on the periphery of a pulleyand operable to CHARLES MACKERT.

